Dear BGLover67, If you followed all the ''Good Advice'' here, you will end up with a dissembled car on a lonely highway...alone.Run-on, pre ignition, dieseling, post ignition, call it what you want, is caused by Hot carbon in your cylinder heads. if it were electrical the engine would follow the timing order. The next time this happens, lift the cap off the distributer, it will continue to run uneven. How do you fix;remove the heads & clean or drive the car like you stole it. Good luck young man.